| Date | Name | Symbol | Type | Security | Shares | Price | Value | Ownership | Reported |
| 05/04/2023 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Exercise | Stock Option (right to buy) | 50k | $2.01 | $100.5k | | 05/03/2023 |
| 05/04/2023 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Sale | Common Stock | 26k | $40.02 | $1M | | 05/03/2023 |
| 05/04/2023 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Sale | Common Stock | 24k | $38.97 | $935.6k | | 05/03/2023 |
| 05/03/2023 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Exercise | Stock Option (right to buy) | 54.9k | $2.01 | $110.4k | | 05/03/2023 |
| 05/03/2023 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Sale | Common Stock | 54.9k | $39.14 | $2.1M | | 05/03/2023 |
| 12/20/2022 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Grant | Common Stock | 234k | $0.00 | $0 | | 12/16/2022 |
| 12/16/2022 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Grant | Common Stock | 18.4k | $0.00 | $0 | | 12/16/2022 |
| 09/27/2022 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Exercise | Common Stock | 39.1k | $30.77 | $1.2M | | 09/27/2022 |
| 09/27/2022 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Exercise | Common Stock | 1.5k | $31.21 | $48.1k | | 09/27/2022 |
| 07/08/2022 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Disposition | Common Stock | 551.2k | $0.00 | $0 | | 07/08/2022 |
| 07/07/2022 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Exercise | Stock Option (right to buy Common Stock) | 2.5k | $14.54 | $36.4k | | 07/07/2022 |
| 02/11/2022 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Sale | Common Stock | 42.2k | $52.28 | $2.2M | | 02/11/2022 |
| 02/11/2022 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Sale | Common Stock | 1.9k | $50.51 | $96k | | 02/11/2022 |
| 02/11/2022 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Sale | Common Stock | 61.5k | $50.90 | $3.1M | | 02/11/2022 |
| 02/11/2022 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Sale | Common Stock | 40.9k | $53.11 | $2.2M | | 02/11/2022 |
| 02/11/2022 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Exercise | Stock Option (right to buy Common Stock) | 146.4k | $5.19 | $759.8k | | 02/11/2022 |
| 01/07/2022 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Exercise | Stock Option (right to buy Common Stock) | 11.8k | $5.19 | $61.3k | | 01/07/2022 |
| 01/01/2022 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Grant | Common Stock | 800k | $0.00 | $0 | | 01/01/2022 |
| 12/23/2021 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Exercise | Stock Option (right to buy Common Stock) | 11.8k | $5.19 | $61.3k | | 12/23/2021 |
| 12/15/2021 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Sale | Common Stock | 25.9k | $66.28 | $1.7M | | 12/15/2021 |
| 12/15/2021 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Sale | Common Stock | 14.9k | $67.19 | $998.2k | | 12/15/2021 |
| 12/15/2021 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Sale | Common Stock | 3.1k | $68.20 | $209.6k | | 12/15/2021 |
| 12/15/2021 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Sale | Common Stock | 9.2k | $69.52 | $641.2k | | 12/15/2021 |
| 12/15/2021 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Sale | Common Stock | 7k | $70.19 | $490.6k | | 12/15/2021 |
| 10/22/2021 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Sale | Common Stock | 44.2k | $65.57 | $2.9M | | 10/20/2021 |
| 10/22/2021 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Sale | Common Stock | 5.8k | $66.09 | $385.3k | | 10/20/2021 |
| 10/20/2021 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Sale | Common Stock | 15k | $66.23 | $993.4k | | 10/20/2021 |
| 01/01/2021 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Grant | Common Stock | 800k | $0.00 | $0 | | 12/30/2020 |
| 12/30/2020 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Gift | Common Stock | 599 | $0.00 | $0 | | 12/30/2020 |
| 12/28/2020 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Gift | Common Stock | 1.1k | $0.00 | $0 | | 12/28/2020 |
| 12/18/2020 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Exercise | Common Stock (right to buy) | 12.2k | $4.75 | $58.1k | | 12/18/2020 |
| 12/18/2020 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Exercise | Common Stock (right to buy) | 28.3k | $6.15 | $173.9k | | 12/18/2020 |
| 12/09/2020 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Sale | Common Stock | 16.7k | $67.27 | $1.1M | | 12/08/2020 |
| 12/09/2020 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Sale | Common Stock | 12.1k | $69.80 | $842.3k | | 12/08/2020 |
| 12/09/2020 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Sale | Common Stock | 5.9k | $70.87 | $416.7k | | 12/08/2020 |
|